# StartApplication


Starts the specified Managed Service for Apache Flink application. After creating an application, you must exclusively call this operation to start your application.

## Request Syntax


```
{
   "ApplicationName": "string",
   "RunConfiguration": { 
      "ApplicationRestoreConfiguration": { 
         "ApplicationRestoreType": "string",
         "SnapshotName": "string"
      },
      "FlinkRunConfiguration": { 
         "AllowNonRestoredState": boolean
      },
      "SqlRunConfigurations": [ 
         { 
            "InputId": "string",
            "InputStartingPositionConfiguration": { 
               "InputStartingPosition": "string"
            }
         }
      ]
   }
}
```

## Request Parameters


The request accepts the following data in JSON format.

 ** [ApplicationName](#API_StartApplication_RequestSyntax) **   <a name="APIReference-StartApplication-request-ApplicationName"></a>
The name of the application.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[a-zA-Z0-9_.-]+`   
Required: Yes

 ** [RunConfiguration](#API_StartApplication_RequestSyntax) **   <a name="APIReference-StartApplication-request-RunConfiguration"></a>
Identifies the run configuration (start parameters) of a Managed Service for Apache Flink application.  
Type: [RunConfiguration](API_RunConfiguration.md) object  
Required: No

## Response Syntax


```
{
   "OperationId": "string"
}
```

## Response Elements


If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

 ** [OperationId](#API_StartApplication_ResponseSyntax) **   <a name="APIReference-StartApplication-response-OperationId"></a>
The operation ID that can be used to track the request.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 64.

## Errors


 ** InvalidApplicationConfigurationException **   
The user-provided application configuration is not valid.  
HTTP Status Code: 400

 ** InvalidArgumentException **   
The specified input parameter value is not valid.  
HTTP Status Code: 400

 ** InvalidRequestException **   
The request JSON is not valid for the operation.  
HTTP Status Code: 400

 ** ResourceInUseException **   
The application is not available for this operation.  
HTTP Status Code: 400

 ** ResourceNotFoundException **   
Specified application can't be found.  
HTTP Status Code: 400

## See Also


For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/kinesisanalyticsv2-2018-05-23/StartApplication) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/kinesisanalyticsv2-2018-05-23/StartApplication) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/kinesisanalyticsv2-2018-05-23/StartApplication) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/kinesisanalyticsv2-2018-05-23/StartApplication) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/kinesisanalyticsv2-2018-05-23/StartApplication) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/kinesisanalyticsv2-2018-05-23/StartApplication) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/kinesisanalyticsv2-2018-05-23/StartApplication) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/kinesisanalyticsv2-2018-05-23/StartApplication) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/kinesisanalyticsv2-2018-05-23/StartApplication) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/kinesisanalyticsv2-2018-05-23/StartApplication)